Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Cumulative Review 1

Total questions: 30

Worksheet time: 15mins

Name
Class
Date
1.

A substance made up of two or more chemically combined elements is ___.

a)

a compound

b)

an element

c)

a mixture

d)

a solution

2.

Two or more physically combined substances form ___.

a)

a mixture

b)

an element

c)

a compound

d)

an acid

3.

Which of the following is a mixture?

a)

soda

b)

rust (Fe2O3)

c)

methane (CH4)

d)

oxygen (O2)

4.

A mixture is uniform within the substance, evenly mixed, and cannot be distinguished visibly. This mixture is called ___.

a)

homogeneous

b)

substance

c)

compound

d)

heterogeneous

5.

Which of these is best classified as a compound?

a)

Soil

b)

Iron

c)

Hydrogen

d)

Carbon dioxide

6.

Which physical property can Erin calculate if she knows that the volume of a lead weight is 6.0 cm3 and the mass is 120g?

a)

Density

b)

Area

c)

Volume

d)

Solubility

7.
All of the following are physical properties except ____.
a)
Combustibility
b)
Melting point
c)
Density
d)
Solubility
8.

A substance has a pH of 4. This should be classified as ___.

a)

an acid

b)

a base

c)

a reactive matter

d)

an inorganic compound

9.

Which of the following statements is true concerning acids and bases?

a)

An acid mixed with a base neutralizes the solution

b)

Acids and bases do not react

c)

An acid mixed with a base makes the acid stronger

d)

An acid mixed with a base makes the base stronger

10.

Which chemical property describes a substance that reacts rapidly with oxygen and gives off heat?

a)

combustibility

b)

reactivity

c)

acidity

d)

basicity

11.
Which scientist saw the atom as a positively charged sphere with negative particles (electrons) embedded within?
a)
J.J. Thomson
b)
Niels Bohr
c)
John Dalton
d)
Ernest Rutherford
12.
Which scientist is responsible for first discovering that all the atoms of a particular element are identical but are different from the atoms of all other elements?
a)
Dalton
b)
Thomson
c)
Bohr
d)
Rutherford
13.
Bohr proposed a model of the atom as a large positive sphere with negatively charged electrons revolving around the center in orbits. What was this model nicknamed?
a)
The Planetary Model
b)
The Billiard Ball Model
c)
The Nuclear Model
d)
The Plum Pudding Model
14.

Which scientist used his gold foil experiment to show that an atom has a small, central, positively charged nucleus that contains most of the atom's mass?

a)

Rutherford

b)

Bohr

c)

Thomson

d)

Dalton

15.
Which statement is true according to current thinking?
a)
An atom is mostly empty space.
b)
An atom is a collection of particles, so tightly packed that there is little empty space.
c)
The atomic nucleus is very mobile, and moves around inside a cloud of electrons.
d)
The size of atoms changes over time, pulsating from large to small to large again.
16.
The electron has a ___.
a)
negative charge
b)
neutral charge
c)
positive charge
d)
static charge
17.
Which two particles are in the atomic nucleus?
a)
protons and neutrons
b)
neutrinos and electrons
c)
neutrons and ions
d)
electrons and protons
18.
The atom has an overall ___.
a)
neutral charge
b)
negative charge
c)
positive charge
d)
static charge
19.

Fluorine is atomic number 9 and has a mass of 19. How many electrons would it have?

a)

9

b)

6

c)

19

d)

10

20.
If an atom temporarily gains or loses one or more neutrons, it is considered a/an ___.
a)
ion
b)
isotope
c)
new element
d)
metalloid
21.

All elements in the same group have the same number of ___.

a)

valence electrons

b)

neutrons

c)

protons

d)

atomic mass units

22.

Na, Ca, and K are the symbols for the elements sodium, calcium, and potassium, respectively. Which statement is true for potassium?

a)

Its atomic number is 19, its atomic mass is 39.09, and it is in the same family as calcium.

b)

Its atomic number is 39.09, its atomic mass is 19, and it is in the same family as calcium.

c)

Its atomic number is 19, its atomic mass is 39.09, and it is in the same family as sodium.

d)

Its atomic number is 39.09, its atomic mass is 19, and it is in the same family as sodium.

23.

In which direction do periods run on the periodic table of elements?

a)

horizontal

b)

vertical

c)

zigzag

d)

diagonal

24.

Students conducted an investigation on the properties of three elements. What type of element should sulfur be labeled?

a)

Nonmetal

b)

Metal

c)

Metalloid

d)

Undermetal

25.

Which of the following elements is a metalloid?

a)

Arsenic (As)

b)

Zinc (Zn)

c)

Carbon (C)

d)

Selenium (Se)

26.
An atom of a group 1 element is most likely to form a bond with ___. (Hint: Group 1 has 1 valence)
a)
Calcium (group 2)
b)
Argon (group 18)
c)
Chlorine (group 17)
d)
Potassium (group 1)
27.
Which group of elements have the most reactive metals?
a)
metalloids
b)
halogens
c)
alkali metals
d)
noble gases
28.

What type of ion will Calcium (Ca) in Family 2 form?

a)

2+

b)

2-

c)

3+

d)

3-

29.
When two atoms share electrons (at least one from each atom), what is this occurrence called?
a)
hybridization
b)
ionic bonding
c)
covalent bonding
d)
ionization
30.

Which of the following is an ionic bond?

a)

CaS

b)

F2O

c)

SeO

d)

NH3

Similar Resources on Wayground

PH 5 TEKANAN ZAT PENERAPANNYA

25 questions

PH 5 TEKANAN ZAT PENERAPANNYA

quiz

Worksheet

•

8th Grade

KS3 Year 8 Physics

25 questions

KS3 Year 8 Physics

quiz

Worksheet

•

8th Grade

Máquinas térmicas

26 questions

Máquinas térmicas

quiz

Worksheet

•

6th - 8th Grade

Mars pre-test

25 questions

Mars pre-test

quiz

Worksheet

•

8th Grade

LEVER

25 questions

LEVER

quiz

Worksheet

•

8th Grade

Circulatory System Form 2

25 questions

Circulatory System Form 2

quiz

Worksheet

•

4th - 8th Grade

KUIS GERAK PADA TUMBUHAN

25 questions

KUIS GERAK PADA TUMBUHAN

quiz

Worksheet

•

8th Grade

UH Struktur dan Organ pada Tumbuhan

25 questions

UH Struktur dan Organ pada Tumbuhan

quiz

Worksheet

•

8th Grade